<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Group ComboBox</title>

    <link rel="stylesheet" type="text/css" href="/easyui.css">
    <link rel="stylesheet" type="text/css" href="/icon.css">
    <link rel="stylesheet" type="text/css" href="/demo.css">
    <script src="/jquery.min.js"></script>
    <script src="/jquery.easyui.min.js"></script>
</head>
<body>

<input class="easyui-combobox" name="browser" style="width:280px;" data-options="
				data: 'combobox_data2.json',
				method: 'get',
				valueField:'value',
				textField:'text',
				groupField:'group'
			">
</body>
</html>